Servicing The Front Roller - Toro 30809 Operator's Manual

DANGER
If the blade is allowed to wear, a slot will form
between the sail and flat part of the blade
(Figure 69). Eventually a piece of the blade
may break off and be thrown from under the
housing, possibly resulting in serious injury to
yourself or bystanders.
• Inspect the blade periodically for wear or
damage.
• Always replace a worn or damaged blade.
Figure 69
1. Cutting edge
2. Sail
3. Inspect the cutting edges of all blades. Sharpen the
cutting edges if they are dull or nicked. Sharpen only
the top of the cutting edge and maintain the original
cutting angle to make sure of sharpness (Figure 70).
The blade will remain balanced if the same amount of
metal is removed from both cutting edges.
Figure 70
1. Sharpen at this angle only
4. To check the blade for being straight and parallel, lay
the blade on a level surface and check its ends. The
ends of the blade must be slightly lower than the center,
and the cutting edge must be lower than the heel of the
blade. This blade will produce good quality of cut and
require minimal power from the engine. By contrast a
blade that is higher at the ends than the center, or if
cutting edge is higher than the heel, the blade is bent or
warped and must be replaced.
5. Install the blade, sail facing toward cutting deck, with
the anti-scalp cup and blade bolt. Tighten the blade
bolt to 115–149 N-m (85–110 ft-lb).
3. Wear/slot/crack
Checking the Blade Stopping Time
Service Interval: Before each use or daily
The blades of the cutting deck should come to a complete
stop in approximately 5 seconds after you shut down the
cutting deck engagement switch.
Note: Make sure the decks are lowered onto a clean section
of turf or hard surface to avoid thrown dust and debris.
To verify this stopping time, have a second person stand back
from the deck at least 6 m (20 feet) and watch the blades
on one of the cutting decks. Have the operator shut the
cutting decks down and record the time it takes for the blades
to come to a complete stop. If this time is greater than 7
seconds, the braking valve needs adjustment. Call your Toro
Distributor for assistance in making this adjustment.

Servicing the Front Roller

Inspect the front roller for wear, excess wobble, or binding.
Service or replace the roller or components if any of these
conditions exist.
Disassembling the Front Roller
1. Remove the roller mounting bolt (Figure 71).
2. Insert a punch through the end of the roller housing
and drive the opposite bearing out by alternating taps
to the opposite side of inner bearing race. There should
be a 1.5 mm (0.060 inch) lip of inner race exposed.
3
4
1
1. Front roller
2. Mounting bolt
3. Push the second bearing out in press.
4. Inspect the roller housing, bearings, and bearing spacer
for damage (Figure 71). Replace damaged components
and assemble.
Assembling the Front Roller
1. Press the first bearing into the roller housing (Figure
71). Press on the outer race only or equally on the
inner and outer race.
49
2
G011356
Figure 71
3. Bearing
4. Bearing spacer